CN-121974503-A - Cooling circulating water system medicament adding device and adding method thereof

CN121974503ACN 121974503 ACN121974503 ACN 121974503ACN-121974503-A

Abstract

The invention discloses a reagent adding device of a cooling circulating water system, which comprises a cooling water tank and an air compressor connected with the cooling water tank through a main circulating water pipeline, wherein the side wall surface of the main circulating water pipeline is communicated with a reclaimed water inlet pipeline, the reclaimed water inlet pipeline is connected with the reagent adding device through a reagent inlet pipeline branched from the surface of the reclaimed water inlet pipeline, the reagent adding device comprises a corrosion and scale inhibitor adding mechanism, a sterilization algicide adding mechanism and a defoaming agent adding mechanism which are arranged side by side, and a control loop of the corrosion and scale inhibitor adding mechanism, the sterilization algicide adding mechanism and the defoaming agent adding mechanism is electrically connected with a time control switch arranged in a distribution box and can independently preset the operation time period of one reagent adding device through the time control switch. The invention is suitable for a cooling water system which takes softened water and reclaimed water as water supply sources, and has the characteristics of reasonable structural design, accurate medicament addition, high automation addition degree and the like.

Inventors

WANG YURAN
YUAN LIN
LIU XIAOLEI
WANG JIAN
FU XIN
SHEN PENGCHENG
GAO WEI
ZHU BOWEN
ZHANG GUANGLONG
KANG XIN

Assignees

张家口卷烟厂有限责任公司

Dates

Publication Date: 20260505
Application Date: 20260319

Claims (8)

1. The utility model provides a cooling circulation water system medicament dosing device which characterized in that: the device comprises a cooling water pool and an air compressor connected with the cooling water pool through a main circulating water pipeline, wherein a side wall surface of the main circulating water pipeline is communicated with a reclaimed water inlet pipeline, the reclaimed water inlet pipeline is connected with a medicament feeding device through a medicament feeding pipeline branched from the surface of the reclaimed water inlet pipeline, the medicament feeding device comprises a corrosion and scale inhibitor feeding mechanism, a sterilization and algae killing agent feeding mechanism and a foam liquid observing window which are arranged side by side, the corrosion and scale inhibiting agent feeding mechanism comprises a medicament storage tank I and a metering pump I symmetrically distributed at the top of the corrosion and scale inhibiting agent feeding mechanism, the sterilization and algae killing agent feeding mechanism comprises a medicament storage tank II and a metering pump II symmetrically distributed at the top of the medicament storage tank II, the foam liquid detecting device is arranged in the main circulating water pipeline and is electrically connected with the metering pump III through a metering pump pipeline, the medicament storage tank I, the medicament storage tank II, the medicament metering pump III, the medicament storage tank III and the metering pump III are all provided with feeding ports, a discharging port, a residual liquid discharging port and a liquid observing window, the residual liquid discharging ports are respectively provided with a medicament storage tank I, the discharging ends and a three-way metering pump II are respectively connected with a power supply control loop through respective pipeline, a three-way time control switch, a three-way metering pump box is connected with an electric control circuit, a power supply, a three-way metering pump box is connected with a power supply, a three-way control switch is connected with a power supply, a control loop is connected with the power supply, and a three-way control switch is connected with the metering pump, and a control loop is connected with the power supply, and a control loop, the operation time period of each medicament adding mechanism can be independently preset through a time control switch.
2. The reagent feeding device for the cooling circulating water system according to claim 1, wherein the reclaimed water inlet pipeline is vertically connected to the side wall surface of the main circulating water pipeline, the output end of the reclaimed water inlet pipeline is communicated with the main circulating water pipeline, the reagent inlet pipeline is branched out from the surface of the reclaimed water inlet pipeline to form a plurality of paths, the input end of the reagent inlet pipeline is in sealed connection with the output end of the reagent feeding device, the output end of the reagent inlet pipeline is communicated with the side wall surface of the reclaimed water inlet pipeline, the access point of the reclaimed water inlet pipeline relative to the main circulating water pipeline is positioned on the surface of the upstream horizontal section, close to the cooling water tank, of the main circulating water pipeline, the discharge ends of the metering pump I, the metering pump II and the metering pump III are respectively converged into the reagent inlet pipelines which are in one-to-one correspondence through collecting pipelines respectively connected, and check valves are arranged at the connecting positions of the reagent inlet pipelines 3 which are in correspondence with the collecting pipelines.
3. The cooling circulating water system agent adding device according to claim 2, wherein the number of the drug feeding pipelines is three, the drug feeding pipelines are respectively and hermetically communicated with the corrosion and scale inhibitor adding mechanism, the sterilization algicide adding mechanism and the defoaming agent adding mechanism in a one-to-one correspondence manner through the collecting pipelines which are respectively connected, and each drug feeding pipeline is independently provided with a pressure gauge.
4. The chemical dosing device of the cooling circulating water system is characterized in that polypropylene is selected as a material of a chemical storage tank I in the corrosion and scale inhibitor dosing mechanism, a transparent liquid level observation window I is arranged on the side wall of the chemical storage tank I, a filling port I with a sealing cover is arranged at the top of the chemical storage tank I, a discharge port I is arranged at the rear of the filling port I, a residual liquid discharge port I is arranged at the bottom of the chemical storage tank I, mechanical diaphragm type metering pumps are selected as metering pumps I, two metering pumps I are arranged in number, feeding ends of the two metering pumps I extend into the chemical storage tank I through the discharge ports I through pipelines, discharging ends of the two metering pumps I are communicated with corresponding chemical feeding pipelines through a collecting pipeline I, and a pressure gauge I is arranged on the chemical feeding pipeline correspondingly communicated with the collecting pipeline I at the discharging ends of the two metering pumps I.
5. The chemical dosing device of the cooling circulating water system is characterized in that a chemical storage tank II in the sterilizing and algicidal agent dosing mechanism is made of polypropylene, a transparent liquid level observation window II is arranged on the side wall of the chemical storage tank II, a filling port II with a sealing cover is arranged at the top of the chemical storage tank II, a discharging port II is arranged behind the filling port II, a residual liquid discharging port II is arranged at the bottom of the chemical storage tank II, two metering pumps II are arranged in number, mechanical diaphragm metering pumps are also adopted by the two metering pumps II, the feeding ends of the two metering pumps II extend into the chemical storage tank II through the discharging ports II through pipelines, the discharging ends of the metering pumps II are connected into chemical feeding pipelines corresponding to the metering pumps through collecting pipelines II, a parallel passage is formed between the chemical feeding pipelines and a main pipeline I of the corrosion and scale inhibitor dosing mechanism, and a pressure gauge II is arranged on the chemical feeding pipeline corresponding to the main pipeline II at the discharging ends of the two metering pumps.
6. The cooling circulating water system agent dosing device of claim 1, wherein the agent storage tank III in the defoaming agent dosing mechanism is made of polypropylene, the structure is consistent with the agent storage tank I and the agent storage tank II, a transparent liquid level observation window III is arranged on the side wall of the agent storage tank III, a filling port III with a sealing cover is arranged at the top of the agent storage tank III, a discharge port III is arranged at the rear of the filling port III, a residual liquid discharge port III is arranged at the bottom of the agent storage tank III, mechanical diaphragm type metering pumps are selected as the metering pumps III, the number of the metering pumps III is two, the feeding ends of the two metering pumps III extend into the interior of the agent storage tank III through the discharge port III by pipelines, the discharging ends of the two metering pumps III are connected into the corresponding feeding pipelines by the collecting pipeline III, a pressure gauge III is arranged on the corresponding feeding pipeline at the discharging ends of the two metering pumps III, the detection end of the foam sensor can be directly contacted with the foam sensor by the flange and is fixed in the main pipeline of the circulating water, and the foam sensor is connected with the signal receiving end of the electronic control signal cable through the downstream of the signal control cable through the signal receiving end of the foam sensor.
7. The agent adding device of the cooling circulating water system according to claim 1, wherein the distribution box is fixed on a wall body close to the agent adding device, an internal time control switch of the distribution box is a three-way microcomputer time control switch, a power supply of the time control switch is connected with a 380V industrial power supply, three-way load output ends of the time control switch are respectively and correspondingly electrically connected with control loops of a metering pump I, a metering pump II and a metering pump III, two metering pumps of the same adding mechanism are connected in parallel circuit, and each load output end independently controls operation and switching of two metering pumps of the same type.
8. The method for adding the cooling circulating water system medicament is applied to the cooling circulating water system medicament adding device disclosed in any one of claims 1 to 7, and is characterized by comprising the following specific steps: Step S1, conventional addition An operator respectively fills corrosion and scale inhibitor, sterilizing algicide and defoaming agent through filling ports at the tops of the medicament storage tank I, the medicament storage tank II and the medicament storage tank III, confirms that the liquid level of the medicament is not lower than one third of the volume of the medicament storage tank through a liquid level observation window, and closes a sealing cover of the filling port after filling is completed; the method comprises the steps of switching on a power supply of a time control switch in a distribution box, enabling the time control switch to operate according to a preset program, starting the time control switch at fixed time and fixed time every day, enabling three paths of load output ends of the time control switch to synchronously power on, correspondingly starting operation pumps of a metering pump I, a metering pump II and a metering pump III, enabling a standby pump of each dosing mechanism to be in a standby state, enabling the metering pump I and the metering pump II to convey corrosion and scale inhibitor and sterilization algicide according to rated flow of 10L/h, enabling the metering pump III to convey antifoaming agent according to rated flow of 5L/h, enabling the three agents to be converged into corresponding medicine inlet pipelines through respective junction pipelines and check valves, finally injecting circulating water main pipelines, enabling the three agents to rapidly diffuse to the whole cooling water system under the water flow effect, respectively realizing scale inhibition, sterilization and defoaming functions, enabling pressure gauges of all pipelines to monitor conveying pressure in real time, enabling the third paths of loads to be powered off after a period of time, enabling the metering pump III to stop working, enabling the operation pump III to complete regular timing dosing of the antifoaming agent to be fed in the day, enabling the time control the first path of the operation pump to power off after a preset time, enabling the time control switch to control the first path of load and second path of load to power off operation pump to complete regular time feeding of the antifoaming agent after preset time is finished after preset time is long; Step S2, abnormal supplement adding If the foam sensor in the main circulating water pipeline detects that the foam content exceeds the preset threshold value of 50mg/L, the foam sensor immediately sends a trigger signal to a signal receiving end of a time control switch, the time control switch immediately starts an operation pump of a metering pump III and supplements the defoaming agent according to the flow of 5L/h; step S3 standby Pump switching In the operation process of the step S1 and the step S2, if any one of the operation pump of the metering pump I, the metering pump II and the metering pump III pumps out of a flow abnormality, a stop and other faults, the time control switch immediately triggers a fault alarm prompt, and after an operator receives a prompt signal, the operation personnel can synchronously start the metering pumps with the same group for standby through the manual change-over switch arranged beside the corresponding metering pump, so that the normal operation of other dosing mechanisms is not influenced in the whole switching process, the continuous and stable dosing of the medicament is ensured, and the fluctuation of the water quality of a cooling water system is avoided; s4, system operation and maintenance In daily operation and maintenance, an operator regularly checks the medicine allowance in each medicine storage tank through a liquid level observation window of each medicine storage tank, supplements the medicine allowance through a filling port in time when the medicine allowance is insufficient, monitors pipeline pressure in real time through a pressure gauge on each medicine inlet pipeline correspondingly connected, and timely checks problems of pipeline blockage, leakage and the like if the pressure is suddenly increased or suddenly decreased, regularly opens a residual liquid discharge port at the tank bottom of each medicine storage tank, discharges medicine sediment and residual liquid in the tank, closes a sealing plug after the discharge is completed, regularly checks and cleans the cleanliness of a detection end of a foam sensor to avoid the influence of dirt adhesion on the accuracy of foam content detection, and simultaneously regularly checks the working state of a check valve, timely replaces an aged sealing ring and a vulnerable part to ensure long-term stable operation of the whole medicine adding device.

Description

Cooling circulating water system medicament adding device and adding method thereof Technical Field The invention relates to the technical field of water treatment, in particular to a cooling circulating water system agent adding device and a cooling circulating water system agent adding method. Background In cooling water systems, softened water and reclaimed water have become increasingly common sources of water make-up in order to reduce reliance on fresh water resources and production costs. However, the chemical components and the microorganism composition of the non-traditional water source are different from those of the natural water source, so that higher requirements are put on water quality control, and scale formation and microorganism breeding can be effectively prevented through a finer and scientific medicament management strategy, so that the stable operation of a cooling water system is ensured. At present, the addition of chemical agents such as sterilizing algicides, corrosion and scale inhibitors and the like in a cooling water system mainly depends on manual experience, and operators manually add the agents into an outdoor large water tank through a simple metering tool. The manual dosing mode has the obvious defects that on one hand, dosing quantity is completely judged manually, accuracy is difficult to ensure, excessive or insufficient dosing is easy to occur, water quality fluctuation is unstable and the medicine effect cannot be effectively exerted, on the other hand, manual operation efficiency is low, frequent manual dosing is low, labor cost is increased, medicine waste is caused by inaccurate dosing quantity, and operation cost is further improved, meanwhile, the existing simple automatic dosing device is mostly single-medicine dosing, multi-medicine time-sharing accurate control and fault redundancy configuration are lacked, complex water quality control requirements of softened water and reclaimed water cannot be adapted, and system scaling, microorganism breeding or excessive medicine waste are easily caused. Disclosure of Invention In view of the above, the invention aims to provide a cooling circulating water system medicament adding device which can solve the technical problems of inaccurate medicament adding amount, low efficiency, waste of cost and unstable water quality existing in the existing manual medicament adding mode. In order to solve the technical problems, the invention adopts the following technical scheme: The utility model provides a cooling circulating water system medicament dosing device, it includes cooling water pond and the air compressor machine that is connected with it through circulating water trunk line, the lateral wall intercommunication of circulating water trunk line has the reclaimed water inlet channel, the reclaimed water inlet channel is connected with medicament dosing device through the feed pipe who branches from its surface, medicament dosing device includes corrosion and scale inhibitor dosing mechanism, disinfect algicide dosing mechanism and defoaming agent dosing mechanism that set up side by side, corrosion and scale inhibitor dosing mechanism includes medicament holding vessel I and symmetry cloth in its top, disinfect algicide dosing mechanism includes medicament holding vessel II and symmetry cloth in its top's measuring pump II, defoaming agent dosing mechanism includes medicament holding vessel III, symmetry cloth in its top's measuring pump III and the foam sensor who sets up in the circulating water trunk line and be connected with measuring pump III is automatically controlled, the medicine storage tank I, the medicine storage tank II and the medicine storage tank III are respectively provided with a filling port, a discharging port, a residual liquid discharging port and a liquid level observation window, the residual liquid discharging port is provided with sealing plugs, the discharging ends of the metering pump I, the metering pump II and the metering pump III are respectively communicated with the medicine feeding pipelines in a one-to-one correspondence manner through collecting pipelines respectively connected with the discharging ports, the surfaces of the medicine feeding pipelines are provided with pressure gauges, control loops of the metering pump I, the metering pump II and the metering pump III are electrically connected with a distribution box, a time control switch is arranged in the distribution box and is provided with a power end and three-way load output ends, the power end of the time control switch is connected with a power supply, the three-way load output ends of the time control switch are respectively electrically connected with control loops of the metering pump I, the metering pump II and the metering pump III in a one-to-one correspondence manner, the operation time period of each medicament adding mechanism can be independently preset through a time control switch. The device comprises a cir